Answer:
C
Explanation:
If the products have a higher energy level than the reactants then the reaction is endothermic.
In an endothermic reaction, the reaction mixture absorbs heat from the surroundings. Therefore, the products will have a higher energy than the reactants and ΔH will be positive.
In an exothermic reaction, the reaction mixture releases heat to the surroundings. Therefore, the products will have a lower energy than the reactants and ΔH will be negative.
Answer:
Propanganda
Explanation:
Propanganda can be defined as information that is often of a misleading nature. It is biased and often used to promote a political point of view.
It is the spreading of lies, half truths with the sole purpose of influencing public opinion. Propanganda works by
playing upon the fears, angers and emotions of people. It raises in people, the feelings of unpleasantness and also disgust.
Answer: Arsenic has five valence electrons.
Explanation: Good luck!
The sideways and downward movement of the edge of a plate of the earths crust into the mantle beneath another plate
Answer:
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance.
Explanation:
Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.
